Reel for plumb bobs



Oct. f6, 41931. J. A. GILMAN REEL'FOR PLUMBBOBSA Filed March 30. 192B,

Cheisfleybefeesilyf leerse/'d vmatieally heldin anyp 'itio' 'be adjusted andfrapdl' Tevyouiid when? its useisnt desired; Other obj eets will appeary Y-'midne-1iyih; the cgursiajeff 'the fouwing deseifption; and' the entionT resides' 'in eerl `tainlioifelffeatur pointed out'ini the appended v lIn the aeoomp'anying drawings.

'Somewhat Shorter radius" quantum i1 111sm-at`l ed in' the "fdrayvingyf opposite Tend meml i 'befaamde 'are arche" as shown', so' that'they reel vthe side members-fire providedfat Y their" lcenters With/openings adapted 'gto kwarep orfairle V 6, theYE trunnions'being of less sdiame' ter than the'bodypi,thefpintlesothat annular shoulders, iiidieatedgatlr?,will be provided:

i T A which-amy iehfgref particularly 'e'e comprises a'hubmember` 8 and-side pla" S19 in the form* ofeiroularldisks, the side stbeing'preferably formed integral 'with th'-li1 tb;as 'shown' inl Fig.' l. Y `The plumb line 10 is atta'ehedtothe'hub of the reel in any 65 apprifed'f'mannerf so that it may Wind therel on' between the'sdeiplates and `it passes from the hub through afeentral openinglindieated y dell, theend liiien'iber 4 ofthe frame. Adm ent the opening jllandfatfopposite sides 00 'oftli'v same'other similar opennos are proviuedin the endmember 4 f the imma, and these-openingsreceive theends of a link y12 which in its simplest', Vform is. axloop off-'cord iid-Inaybiutilized as a suspension means as 65 L will heieinafter appear. In the endmember 8"ofthe'fiameLthere iS-seeured a link or eye A *Fig elias@Sectionlvw@ olf relem andfiafhookflll is oaifriedby said link. Thishook'is -orined'of springlwire which isr sujrfaoe Willy be `'presented at either l bui-ldi-ng'fline l'for other suspende ingie "vicef 'By' thisiconstruction, the hook f may bey'easily engagedoverja suspending ,ele

plate'.offzthereeb'as indiated "at 18; sothat the's'idesf'of the frame serve as brakes tore-ff 'sist' r'otfatiou'ofjfthe reel vand thereby yhold 'it -95 s inf an7fpositioiifito which it-may'be brought eii/elthe tr'unnion's at the endsoff the lpiiitler..

lfatlthe-ententhereoi andthemfingers ofthe 100 from; theshank Ysofthat a beveled 75 y mentiandju'stgaseasilyremoved therefrom 80 Y butwill be` effectually held against accidental @Y y leg,

isms-5"* 'heavy and a larger Oheavier'reel 'is/desired,V

l. @gegend es im, me; ii?

25 f of the frame willbe released so that'the den f sired braking engagement between the frame andthe reel will at once occur and the plumb lline and reel will'be eifectually held in the -isaeaes i reel. It will be 'seen also that-whether the i Vcurved element isvtheA side of the Lfra-me orr the side of the reel,the same operativeeffect is obtained in the braking lcontactat thel periphery of the reel and the same clear/- ance for release manipulation-remain at the y *hubfon one side and yTat the periphery on the other side.y

In Figs. 3, and 5, instead of the yloop 12 havingfits ends secured directly inthe end of the frame, I haveshown a link in the form of a Lmetal bail'f26 having its ends [,rockingly engaged and held in 'eyes 27V secured in the end ofl the frame at opposite' i 1 15 sides ofthe opening through which the plumb line l0 passes. This bail or link-will be clear of the thumb line when not in use but will Vswing up close to the line when in use as a suspension means so that the center of gravity common to the line andthe link will y'coincide with the original gravitational center of theline. l

- In use, the plumb line may beunvvound to any rdesired extentfandwhen it has been so unwound the pressure exerted upon the sides position' in which they have been set. VTo rewind the line, thedevice is removed from the element uponwhich it was hung and the line -then held under light tension by one hand kof the user while'the with other hand he Vrolls the reel along any convenient surface, the frictional engagementbetween the Y upon the pintle vand the sides'of the frame` p'eripheries of the reel side plates-and said surface causing a rotationof the reel which will quickly wind the line,l

vIn assembling the device, the reel is placed y then forced apart sufficiently to permit .they

-ends ofthe pintle to be engaged between the same, whereupon slight pressure exerted upon the 'pintle will serve to bring the ends ythereof into alinement withthe openings in the sidesy of the frame and permit the 'latter to n spring over thetrunnions and complete the as-k sembling.v The annular shoulder 7 at `the ends of the pintlewill hold the sides of the frame apart sufficiently to permit freerotationoftheV Y reel when the braking engagementv between vthe frame and the reel has -been relieved.

Itv will Vbe readily seen from the `foregoing description, taken in connection with the ac-` companying drawings, that I have provided an exceedingly simple, compact andlight vdevice which may be vproduced at avery lowfv costand 'will prove highly efficient', in use. It will be especially noted thatthere are no cranks, housings, springs' and other features of const-ruction which, in prior devices,have

l made the cost of thesame highso that mechanics would not adopt and use the devices.

n It will be observed that I haveprovided three means of suspending the device, the plumb line being onexneans of suspension, the link 12 or 26 being a second means, and the hook 14 being a third means. It is evident that the gravitational or static center of lthe link coincides with the static cent'er of the line, and if the device should spin, as sometimes happens, due to the line being twisted, the dynamic centers of the link and the line will also coincide. It is also evident that the link or the line or both constitute a vsuspension means at one extremity ofthe `gravitational axis of the device and the hook 14 is a 'suspension means at the opposite extremity of said gravitational axis, and that, by whatever means the device be suspended, the dynamic axis or static centerV does not change.

Having` thus described the invention, I i claimv..

l. A device for the purpose set forth comprising a frame having resilient sides, a pin- ,links atboth endsof the frame, one of the links vhaving its ends attached tothe frame adJacent 'and atV opposite sides of said line rguide opening and said Aopening and the links being located on the line of gravitation of the frame and reel.

A vdevice for the purpose set forthcomprismg areel, and a frame in which the reel is mounted, there being clearance between the frame and the hub of the reel only atone Vside and clearance ybetween the frame and the periphery of the reel only at the opposite side whereby the frame at the iirstmentioned side normally has braking engagement with 'the periphery of the reel.

4.. A device for the purpose set forth comprisinga reel, and a resilient frame in which the reel is mounted, 'the resiliency of the frame causing one side thereof adjacent its opposite ends to normally bind against the margin of the reel.

A device for the purpose set forth comprislng a reel, and a resilient frame in which *the` reel is mounted and which normally is yfree of the periphery of the reel at one side and is in braking engagement with the periphery of 'thev reel at the opposite side whereby pressure exerted upon the frame at its `ends on one side and at its center on the lopposite side will release the reel.

In testimony whereof I aiiix my signature.

JOHN GILMAN. [1... 5.] 

